Sökning: "Arctic char"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden Arctic char.

  1. 1. Evaluating the effects of climate change on Arctic char : including impacts of brown trout competition

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Ola Carlström; [2023]
    Nyckelord :arctic char; brown trout; climate change; diet; habitat use; temperature;

    Sammanfattning : Climate change is predicted to increase the average global temperature with 1.5 °C between 2030 and 2052. The areas that are most vulnerable for climate change are the arctic regions. Arctic char (Salvelinus alpinus) is a cold-water salmonid species with the most northern distribution of all freshwater fish species. LÄS MER

  3. 2. Diet of Arctic char and brown trout in Northern Sweden : potential effects of burbot and lake area

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Sebastian Dagman; [2023]
    Nyckelord :arctic char; brown trout; diet; stomach content; salmonids; burbot;

    Sammanfattning : To manage and conserve different fish species, it is important to know what factors affect the presence and performance of the species. Relatively few studies have focused on burbot and how they interact with other species. LÄS MER

  4. 3. Fatty acid composition in Arctic char (Salvelinus alpinus) fed with red yeast biomass : a comparison between large and small specimens

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Sofia Jacobsson; [2022]
    Nyckelord :Fatty acid composition; lipid content; oleaginous yeast; Arctic char Salvelinus alpinus ; aquaculture;

    Sammanfattning : Oleaginous yeast has shown to be a promising alternative to replace vegetable oils in fish feed. A problem in aquaculture is that different growth rates can be observed among farm-raised fish, supressing the productions full potential. When different growth rates are observed, it can be questioned if the fish assimilate the feed to the same extent. LÄS MER

  5. 4. Lake Vättern Fish: From the Water to the Consumers : ecosystem-based fisheries management assessment, fish & fish products distribution channels of lake Vättern

    Master-uppsats, SLU/Department of Molecular Sciences

    Författare :Felix Isimemen-Wealth; [2021]
    Nyckelord :ecosystem-based fisheries management; adaptive co-management; Lake Vättern; supply value chain;

    Sammanfattning : This study assessed the Ecosystem-Based Fisheries Management (EBFM) of Lake Vättern by using the EBFM objectives as spelt out by Engler et al. (2015) and Long et al. (2015). In order to fully understand the fish and fish products distribution channels, it was necessary to understand the lake’s fisheries and their management. LÄS MER

  7. 5. Trophic transfer of per- and polyfluoroalkyl substances (PFASs) by glacial relicts in Lake Vättern, Sweden

    Master-uppsats, Örebro universitet/Institutionen för naturvetenskap och teknik

    Författare :Malin Bergman; [2017]
    Nyckelord :;

    Sammanfattning : The aim with the study was to assess if glacial relict amphipods constitute as vectors of transport of per- and polyfluoroalkyl substances (PFASs) in the Arctic char food web in Lake Vättern, Sweden. Sediment, surface water and biota samples were analysed for PFASs using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS), and stable isotope analysis of δ 13C and δ15N was performed on sediments and biota samples. LÄS MER